well there is plenty of information about setting up apache with jboss.
it's configured already. Just start %JBOSS_DIST%/bin.run.bat and then put a war file under the server//deploy directory and check it on http://localhost:8080/
Look in the JBoss3.0 Quick Start guide for more details, or dig around the forum for more. It's an oft asked question.
You'll find the quick start guide at http://sourceforge.net/project/showfiles.php?group_id=22866